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CPM.cmake/examples/json/CMakeLists.txt

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cmake_minimum_required(VERSION 3.14 FATAL_ERROR)
project(CPMJSONExample)
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# ---- Dependencies ----
include(../../cmake/CPM.cmake)
CPMAddPackage(
NAME nlohmann_json
VERSION 3.9.1
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# not using the repo as it takes forever to clone
URL https://github.com/nlohmann/json/releases/download/v3.9.1/include.zip
URL_HASH SHA256=6bea5877b1541d353bd77bdfbdb2696333ae5ed8f9e8cc22df657192218cad91
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)
if(nlohmann_json_ADDED)
add_library(nlohmann_json INTERFACE)
target_include_directories(nlohmann_json SYSTEM INTERFACE ${nlohmann_json_SOURCE_DIR}/include)
endif()
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# ---- Executable ----
add_executable(CPMJSONExample main.cpp)
target_compile_features(CPMJSONExample PRIVATE cxx_std_17)
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target_link_libraries(CPMJSONExample nlohmann_json)